| spatial distribution of soil-transmitted helminths, including strongyloides stercoralis, among children in zanzibar. | a programme periodically distributing anthelminthic drugs to school-aged children for the control of soiltransmitted helminthiasis was launched in zanzibar in the early 1990s. we investigated the spatial distribution of soiltransmitted helminth infections, including strongyloides stercoralis, in 336 children from six districts in unguja, zanzibar, in 2007. one stool sample per child was examined with the kato-katz, koga agar plate and baermann methods. the point prevalence of the different helmi ... | 2008 | 19021108 |